Global Patent Index - EP 0968139 A1

EP 0968139 A1 20000105 - METHOD OF MANUFACTURING A HOLLOW TV PRODUCT OF GLASS

Title (en)

METHOD OF MANUFACTURING A HOLLOW TV PRODUCT OF GLASS

Title (de)

VERFAHREN ZUM HERSTELLEN EINES HOHLEN TV PRODUKTS AUS GLAS

Title (fr)

PROCEDE DE FABRICATION D'UN ELEMENT DE TELEVISION EN VERRE

Publication

EP 0968139 A1 (EN)

Application

EP 98951625 A

Priority

  • EP 98951625 A
  • EP 97203697 A
  • IB 9801809 W

Abstract (en)

[origin: WO9926888A1] A method of manufacturing a TV product of glass, such as a TV screen or a TV cone, in which method a blob of a viscous glass is introduced at a high temperature into a mould, whereafter a plunger is pressed with a required pressure into the viscous glass to obtain the desired shape of the product, after which the product is cooled to room temperature. In the manufacture, the plunger remains in contact with the product until the product is dimensionally stable, which is obtained by choosing the ratio between the time period during which the plunger is in contact with the product and the time period during which the product remains in the mould to be greater than 0.5 and smaller than 1.

IPC 1-7

C03B 11/00

IPC 8 full level

C03B 11/00 (2006.01); C03B 11/10 (2006.01); C03B 11/12 (2006.01); C03B 11/16 (2006.01)

CPC (source: EP)

C03B 11/10 (2013.01); C03B 11/127 (2013.01); C03B 11/16 (2013.01)

Citation (search report)

See references of WO 9926888A1

Designated contracting state (EPC)

DE FR GB

DOCDB simple family (publication)

WO 9926888 A1 19990603; CN 1244180 A 20000209; DE 69821602 D1 20040318; DE 69821602 T2 20040930; EP 0968139 A1 20000105; EP 0968139 B1 20040211; JP 2001509772 A 20010724

DOCDB simple family (application)

IB 9801809 W 19981113; CN 98801937 A 19981113; DE 69821602 T 19981113; EP 98951625 A 19981113; JP 52800799 A 19981113